Equal Section Angular Contact Ball Bearings: Features, Models & Applications

Equal section angular contact ball bearings, also known as constant section bearings, are ultra-thin-wall precision bearings designed for limited-space and lightweight high-precision rotation scenarios. Featuring a fixed cross-sectional size, lightweight structure and high-speed performance, these bearings deliver both radial and axial load capacity with excellent rigidity. With complete CS and RA series models, they are widely adopted in robotic, aerospace and precision industrial equipment.

1. Core Bearing Features

•Constant Section & High Space Utilization: Fixed cross-section size optimizes internal cavity layout, simplifies mechanical structure and greatly improves space utilization. Perfect for compact and lightweight rotating parts such as robot arms and drone gimbals.

•High Precision & High-Speed Performance: Adopts thin-wall structure and lightweight cage design with low moment of inertia and low friction loss. Its limiting speed is higher than standard angular contact ball bearings of the same dimension.

•Dual Load Capacity: Reasonable angular contact structure enables the bearing to withstand radial load and axial load simultaneously, meeting multi-directional load operation requirements.

•Lightweight & High Rigidity: Slim thin-wall design reduces overall weight effectively. Optimized contact angle and combined mounting methods guarantee stable system rigidity during high-precision operation.

2. Product Classification & Main Models

Classified by contact angle and structural characteristics, equal section angular contact ball bearings mainly include CS series and RA series with complete standard sizes:

CS Series Equal Section Bearings: CS040, CS050, CS060, CS070, CS080, CS090, CS100, CS120, CS140, CS160 ultra-thin constant section models

RA Series Slim Bearings: RA040, RA050, RA060, RA070, RA080, RA090, RA100, RA120 lightweight high-rigidity models

High-Precision Grade Models: P4/P5 precision grade, sealed ZZ/2RS dust-proof type and preload adjustable types for precision equipment

3. Application Scope

Equal section angular contact ball bearings are widely used in high-precision, lightweight and space-limited scenarios, including industrial robot joints, drone gimbals, radar antennas, precision machine tools, optical detection equipment and aerospace precision rotating components.

4. Product Advantages

Our constant section bearings feature fixed cross-section dimension, ultra-thin lightweight structure, low friction and high rotational speed. CS and RA full series specifications support flexible installation and combined assembly. With high precision and stable rigidity, they provide professional lightweight and compact bearing solutions for modern precision intelligent equipment.